Improvement in high and low water indicators



, NITED STATES PATENT OFFICE.

e. B. MAssEY, or NEW YORK, N. Y.

INIPROVEMENTIN HIGH AND LOW WATER INDICATORS.

I Specification forming part of Letters Patent No. 95,246, dated September 28, 1869.

To all whom ,it may concern:

yBe it known that I, G. B. MAssEY, of the city, county, and State of New York, have ini vented a new and useful Improvement in I-Iigh `section of my improved high and low water indicator. l

rlhis invention relates to a new alarm attachment to steani-boilers,`which will be operated when the wateris a certain distance above, as well as when it is below, the proper height, and which will also, when it is operated, indicate whether it is put in action by high or low water. The engineer is thereby enabled i at once to apply the proper remedy, and either to,arrest the supply of water or toprovide for a further supply.

A in the drawingrepresents a cylindrical vessel, of suitable size, attached to a tubular. stem, B, which projects from the boiler C, and

which extends into said boiler as far as the low-water line of the same. Upon the cylinder` A is placed a whistle, D, as shown. Within the vessel A is a hollow vessel or float, E, which has a pipe, F, lextending into the pipe B, and as far as the same, as shown. Into the pipe F is fitted a still smaller pipe, G, which i extends into the float E, entirely or nearly to the upper end of the same, the upper part being perforated; as shown. The lower end of the pipe G extends entirely through the pipe F, and `is then bent up to reach the high-wa ter line.

H is a valve fitted upon the iloat E to keep the whistle closed. When the'water is at its proper level, as in the drawing, it would, by the pressure, be caused to rise in the pipe B and vessel A, as indicated. The steam enters the upper end of the pipe G, and is thereby carried into the iioat, lling the same and the pipe F to the regular water-height. The vessel E floats, therefore, on the water in A, and is elevated to hold the valve H against its seat. When'the water falls below the lower ends of B and F, it will also flow out of the vessel A, and the float will cease to swim. It will then drop upon the bottom of A and draw the valve down, thereby allowing the steam to pass through and blow the whistle. \When the water rises above the turned-up lower end of the pipe G, steam will be displaced in the float by water passing up through the pipes F and G, and the iioat will thereby become heavy, and will sink in A to open the valve. The water in A will then be blown through the whistle. Thus at low water steam and at high water waterwill be blown through the whistle. rIhe steam, as it enters the iioat during the normal water-height, will condense there and iiow back into the boiler through the pipe F, and a continuous circulation is thus obtained.

Having thus described my invention, what I claim as new, and desire to secure by Letters 1. rIhe combination, in a water-indicator, A, of the float E, valve H, and pipes B, F, and G, all arranged and operating substantially as herein shown and described.

2. The turned-up pipe G, arranged Within the oating valve-carrier of a water-indicator, substantially as herein shown and described.

- G. B. MASSEY.

Witnesses:

GEO. W. MABEE, ALEX'. F. BoBERTs. 

